additional transcripts???

My transcript got processed but they sent me an email saying I need transcripts from 2 other schools otherwise it will show up as an unregistered transcript or something. Do I really need to get these transcripts? Both are JCs and I only took 1 summer class at each one (spanish and lower division major class)?

Also, is there any advantage of applying early even if you file is not completed with lsdas as opposed to just waiting till you submit everything and then sending in the apps?